Improvement in mitering-machines



W. E. EASTMAN. Mitering Machine.

No. 201,657. Patent ed Mafch'26,1878.

Viiuan w N. PETERS. PHDTOL TNOGRAP UNITED STATES PATENT OEEIoE.

WILLIAM E. EASTMAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO SARAH N.EASTMAN, OF SAME PLACE.

IMPROVEMENT IN MlTERlNG-MACHINES.

Specification forming part of Letters Patent No. 201,657, dated March26, 1878; application filed February 8, 1878.

To all whom it may concern Be it known that I, WILLIAM EVERARD EASTMAN,of Worcester, in the county of Worcester and State of Massachusetts,have invented certain new and useful Improvements in Miter-Machines; andI do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art towhich it appertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereonwhich form a part of this specification.

Figure 1 represents a perspective view of my improved machine. Fig. 2represents, upon an enlarged scale, a top or plan view of so much of themachine as is necessary to illustrate my improvements. Fig. 3represents, also upon an enlarged scale, a front view, looking indirection indicated by arrow 1, Fig. 2, of so much of the machine as isnecessary to illustrate my invention; and Fig. 4 represents a sectionView, looking in the direction of arrow 2,Fig. 2, of the parts shown inFig. 3.

The object of this invention is to avoid all adjustments and the use forany support under the rabbet, which is always necessary when the knivesare brought down upon the moldin g in a straight line. To accomplishthis result I use the machine herein described. L

In the drawings, A is a triangular carrying device, to which the knivesto a are pivoted by the bolts d d. B B are guide-plates attached to theframe in any suitable manner, and having curved slots 11 12, into whichslots projections or screws 6 e from the knives extend.

In lieu of making the guide-plates B B'with slots, the slots may be madein the knives, and the projections be placed upon the guideplates B B,when the same motions will be given to the knives during theirreciprocation. A support or standard extends upward in front of theknives, and the work may rest against this support. A V-shaped groove inj this standard receives the front edges of the cutting-knives as theymove up and down.

Another very useful and labor-saving part of my invention is a borer,placed near the point where the molding is severed, which makes the nailor brad hole at the same time the molding is severed by pressingslightly with the hand on the end of spindle, which contains a drill orany suitable borer, and made to revolve while the knives are cutting byany suitable device.

The device shown in Fig. 1 is a coil-spring, attached to the uprightstandard at the lower end, and a small belt at the other end passingover a small pulley on spindle, and attached to the treadle, so thatdownward motion of treadle revolves it to the right, and the springrevolves it back to the left while treadle is passing upward, whichdraws the borer easily from the molding.

.With this improvement in cutting miters much time is saved and betterwork produced.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. A reciprocating knife having a guidingprojection, in combination witha guide provided with a curved slot, substantially as described.

2. The triangular carrier and knives pivoted thereto, in combinationwith the guide having the curved slot, whereby a partial rotation, aswell as a drawing out. is given to the knives, substantially asdescribed.

3. The combination of the triangular carrier, the pivoted knives, theslotted guides, and the front guide, all constructed and relativelyarranged as shown and described.

4. The boring-tool 3 in combination with reciprocating cutting-knives,when all are operated simultaneously by the same mechanism,substantially as described.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

WILLIAM E. EASTMAN.

Witnesses:

A. LEES, F. RITTERsHAUs.

